<html>
<head>

</head>
<body>
<form action="update_admin_student_details_selected_columns.action" method="post">
<input type="hidden" name="table_name" value="student_details"/>
<input type="checkbox" name="selected_columns" value="3">rollno|</input>
<input type="checkbox" name="selected_columns" value="2">name</input>
<input type="checkbox"  name="selected_columns" value="5">moble number</input>
<input type="submit" value="Submit"/>
</form>
</body>
</html>